4 Repair
4.5.1. Replacement of SMB unit
3HAC022033-001 Revision: K
298
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Removal, SMB unit
Use this procedure to remove the SMB unit.
Refitting, SMB unit
Use this procedure to refit the SMB unit.
Action
Note
1. Move the robot to the calibration position.
2.
DANGER!
Turn off all electric power, hydraulic and pneumatic
pressure supplies to the robot!
Turn off all electric power and hydraulic but not the air
pressure to the gearboxes, motors and SMB.
3.
esd
WARNING!
The unit is sensitive to ESD. Before handling the unit
please read the safety information in the section
WARNING - The unit is sensitive to ESD! on page 49
4. Remove the
SMB cover
by unscrewing its
attachment screws.
Shown in the figure
5. Remove the connectors X8, X9 and X10 from the
brake release board, if need of more space.
6. Remove the nuts and washers from the
pins
securing
the board.
Shown in the figure
7. Gently disconnect the connectors from the SMB unit
when pulling the board out.
Connectors R1.SMB1-3,
R1.SMB4-6 and R2.SMB
8. Disconnect the
battery cable
from the SMB unit.
Shown in the figure
Action
Note
1.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
Turn off all electric power and hydraulic but not
the air pressure to the gearboxes, motors and
SMB.
Continued
Continues on next page
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